1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cba8bcc68a7bb12167ae686b9e168879a6a427c17bd75c06b41a6a5bea93fa. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32831e7d-018b-4196-9fae-fcf0207aef3c.json and https://artists.proofprofile.net/proofs/artist/32831e7d-018b-4196-9fae-fcf0207aef3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2961526daf5f787e75d256f462b0a85c7e8cd29f47ce2a05980f0f9da6db8cb1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:19:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG932201503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bf0685e5e22a1c2092f4a4ade46a1dfea4e7900fe1ef8c6c9c3fa9129d5b5a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2283699.
Find your Happiness / What Da F**k You Want
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4aa9c26817a73218a142695b00ed343344580856c49acdbd8795b34f558a58c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITFGO2300116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9acdf65241c18584605b15035a95065c0cbf6c06cebc5023950a862b37b77d4. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITFGO2300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5a432b660ffbd9fc7ede4f15e44a9875723a9557973c827375a56f17041459. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P42488592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62230ebf0d9fef9214b21e8ab4e89d5b6fc9e4b68bc59f98af38413e8f3b01fa. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJX32005184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad52d236d63c6e6a92fc1ed2b4b8f31a41157b37086764dc3c8175f6080ec87. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA2301111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501df261a11700d19de11a69d7403a2f37dd629f20ca528eaa87b88161aad9b4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA2301113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4aa9c26817a73218a142695b00ed343344580856c49acdbd8795b34f558a58c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITFGO2300116.
Balance presents Sunsetstrip (Unmixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d49c7db196e7aee14d1901e78fde5a03b1c81a698bc272c540924748a69e5c6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN21919109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad52d236d63c6e6a92fc1ed2b4b8f31a41157b37086764dc3c8175f6080ec87. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA2301111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501df261a11700d19de11a69d7403a2f37dd629f20ca528eaa87b88161aad9b4. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA2301113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6718659e5734537bb379326aaadf083c147ef62d84172a268c9aeb287416f54b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA1906080.
Summer & Smoke (Record Of The Week) [ABGT558] - Collé Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997b91e60de33b4037e333eedad7c32983f5696ca30ee863744591104107ac8b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA2306963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf566907a3f10e93a0dbc8badcda7d799df939a751bb0ff19643f4ac8fd6915fe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE22057270.
Balance presents Sunsetstrip (Mixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1531b1f081d03e96d7c3c722175435c93c8e07fd9fa837ea7e581f54ae46977. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN21919075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b4497302c80b718699d2df485875033ea6c4d63b847edc9234dea3eaae4894. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2480561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b23121fbd9801852b9b5647737f93ff3eb7f307a7e8db980cb167b03b3201d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA1905660.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54569b9420549c8c3855d5c42632b5ad4b07f5ecf8f237c2304e9bb5424f030. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEHM81800271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4e48cf94e324da2f8e1596d1edeca8eecc2314536a2255313dd1d3a0c80a4a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CHC652300173.